#!/bin/sh
# Accessibility check with pa11y-ci, used by CI and for local runs (see README.md).
# Builds the site into a temporary directory, serves it on localhost and checks every page
# in the sitemaps except the past events, which are kept as they were.
set -eu

PA11Y_CI_VERSION=5.0.0
PORT=${PORT:-8080}
# Pages that are not checked: past events and the individual news posts.
EXCLUDE='^http://localhost:[0-9]+/[a-z]+/(37c3|38c3|39c3|eh22|posts/[^/]+)/'

# Use an installed Chrome/Chromium instead of letting Puppeteer download one.
if [ -z "${PUPPETEER_EXECUTABLE_PATH:-}" ]; then
  for candidate in /usr/bin/chromium-browser /usr/bin/chromium "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"; do
    if [ -x "$candidate" ]; then PUPPETEER_EXECUTABLE_PATH=$candidate; break; fi
  done
fi
export PUPPETEER_EXECUTABLE_PATH
export PUPPETEER_SKIP_DOWNLOAD=1

cd "$(dirname "$0")/.."
site=$(mktemp -d)
hugo --quiet --buildFuture --buildDrafts --baseURL "http://localhost:$PORT/" -d "$site"
python3 -m http.server "$PORT" --bind 127.0.0.1 -d "$site" >/dev/null 2>&1 &
server=$!
trap 'kill $server; rm -rf "$site"' EXIT
sleep 1

status=0
for lang in de en; do
  npx --yes "pa11y-ci@$PA11Y_CI_VERSION" --config .pa11yci.json \
    --sitemap "http://localhost:$PORT/$lang/sitemap.xml" --sitemap-exclude "$EXCLUDE" || status=1
done
exit $status